435 lines
9.2 KiB
Plaintext
435 lines
9.2 KiB
Plaintext
<?php
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/**
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* Query
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*
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* Free Query Builder / Database Abstraction Layer
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*
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* @package Query
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* @author Timothy J. Warren
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* @copyright Copyright (c) 2012 - 2014
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* @link https://github.com/aviat4ion/Query
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* @license http://philsturgeon.co.uk/code/dbad-license
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*/
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// --------------------------------------------------------------------------
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namespace Query\Table;
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use Query\Driver\Driver_Interface;
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// --------------------------------------------------------------------------
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/**
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* Abstract class defining database / table creation methods
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*
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* @package Query
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* @subpackage Table_Builder
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*/
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class Table_Builder {
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/**
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* The name of the current table
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* @var string
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*/
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protected $name = '';
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/**
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* Driver for the current db
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* @var Driver_Interface
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*/
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private $driver = NULL;
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/**
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* Options for the current table
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* @var array
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*/
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private $table_options = array();
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/**
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* Columns to be added/updated for the current table
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* @var array
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*/
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private $columns = array();
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/**
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* Indexes to be added/updated for the current table
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* @var array
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*/
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private $indexes = array();
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/**
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* Foreign keys to be added/updated for the current table
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* @var array
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*/
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private $foreign_keys = array();
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// --------------------------------------------------------------------------
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/**
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* Constructor
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*
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* @param string $name
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* @param array $options
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* @param Driver_Interface $driver
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* @return Table_Builder
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*/
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public function __construct($name = '', $options = array(), Driver_Interface $driver = NULL)
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{
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$this->table_options = array_merge($this->table_options, $options);
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$this->set_driver($driver);
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if ($name !== '')
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{
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$this->name = (isset($this->driver)) ? $this->driver->prefix_table($name) : $name;
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}
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return $this;
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}
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// --------------------------------------------------------------------------
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/**
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* Alias to constructor
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*
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* @param string $name
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* @param array $options
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* @param Driver_Interface $driver
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* @return Table_Builder
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*/
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public function __invoke($name = '', $options = array(), Driver_Interface $driver = NULL)
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{
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return $this->__construct($name, $options, $driver);
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}
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// --------------------------------------------------------------------------
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/**
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* Set the reference to the current database driver
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*
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* @param Driver_Interface $driver
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* @return Table_Builder
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*/
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public function set_driver(Driver_Interface $driver = NULL)
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{
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if ( ! is_null($driver))
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{
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$this->driver = $driver;
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}
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return $this;
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}
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// --------------------------------------------------------------------------
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/**
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* Get the current DB Driver
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*
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* @return Driver_Interface
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*/
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public function get_driver()
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{
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return $this->driver;
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}
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// --------------------------------------------------------------------------
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// ! Column Methods
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// --------------------------------------------------------------------------
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/**
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* Add a column to the current table
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*
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* @param string $column_name
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* @param string $type
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* @param array $options
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* @return Table_Builder
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*/
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public function add_column($column_name, $type = NULL, $options = array())
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{
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$col = new Table_Column($column_name, $type, $options);
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$this->columns[] = $col;
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return $this;
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}
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// --------------------------------------------------------------------------
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/**
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* Remove the specified column name from the current table
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*
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* @param string $column_name
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* @return \Query\Table\Table_Builder
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*/
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public function remove_column($column_name)
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{
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return $this;
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}
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// --------------------------------------------------------------------------
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/**
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* Rename the specified column on the current table
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*
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* @param string $old_name
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* @param string $new_name
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* @return \Query\Table\Table_Builder
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*/
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public function rename_column($old_name, $new_name)
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{
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return $this;
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}
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// --------------------------------------------------------------------------
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/**
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* Change the specified column on the current table
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*
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* @param string $column_name
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* @param string $new_column_type
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* @param array $options
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* @return \Query\Table\Table_Builder
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*/
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public function change_column($column_name, $new_column_type, $options = array())
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{
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return $this;
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}
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// --------------------------------------------------------------------------
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/**
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* Determine whether the column currently exists on the current table
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*
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* @param string $column_name
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* @param array $options
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* @return bool
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*/
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public function has_column($column_name, $options = array())
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{
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}
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// --------------------------------------------------------------------------
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// ! Index Methods
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// --------------------------------------------------------------------------
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/**
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* Add an index to the current table
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*
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* @param array $columns
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* @param array $options
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* @return \Query\Table\Table_Builder
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*/
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public function add_index($columns, $options = array())
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{
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$col = new Table_Index($columns, $options);
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$this->indexes[] = $col;
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return $this;
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}
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// --------------------------------------------------------------------------
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/**
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* Remove an index from the current table
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* @param array $columns
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* @param array $options
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* @return \Query\Table\Table_Builder
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*/
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public function remove_index($columns, $options = array())
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{
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return $this;
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}
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// --------------------------------------------------------------------------
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/**
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* Remove an index by its name from the current table
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*
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* @param string $name
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* @return \Query\Table\Table_Builder
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*/
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public function remove_index_by_name($name)
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{
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return $this;
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}
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// --------------------------------------------------------------------------
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/**
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* Check if the current table has an index on the specified columns
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*
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* @param array $columns
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* @param array $options
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* @return bool
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*/
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public function has_index($columns, $options = array())
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{
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}
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// --------------------------------------------------------------------------
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// ! Foreign Key Methods
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// --------------------------------------------------------------------------
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/**
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* Add a foreign key to the current table
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*
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* @param array $columns
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* @param string $referenced_table
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* @param array $referenced_columns
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* @param array $options
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* @return \Query\Table\Table_Builder
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*/
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public function add_foreign_key($columns, $referenced_table, $referenced_columns = array('id'), $options = array())
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{
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$key = new Table_Foreign_Key($columns, $referenced_table, $referenced_columns, $options);
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$this->foreign_keys[] = $key;
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return $this;
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}
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// --------------------------------------------------------------------------
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/**
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* Drop the foreign key from the current table
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*
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* @param array $columns
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* @param string $constraint
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* @return \Query\Table\Table_Builder
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*/
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public function drop_foreign_key($columns, $constraint = NULL)
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{
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return $this;
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}
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// --------------------------------------------------------------------------
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/**
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* Determine whether the current table has the specified foreign key
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*
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* @param array $columns
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* @param string $constraint
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* @return bool
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*/
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public function has_foreign_key($columns, $constraint = NULL)
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{
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}
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// --------------------------------------------------------------------------
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// ! Table-wide methods
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// --------------------------------------------------------------------------
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/**
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* Check whether the current table exists
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*
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* @return bool
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*/
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public function exists()
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{
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$tables = $this->driver->get_tables();
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return in_array($this->name, $tables);
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}
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// --------------------------------------------------------------------------
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/**
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* Drop the current table
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*
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* @return void
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*/
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public function drop()
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{
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}
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// --------------------------------------------------------------------------
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/**
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* Rename the current table
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*
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* @param string $new_table_name
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* @return void
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*/
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public function rename($new_table_name)
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{
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}
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// --------------------------------------------------------------------------
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/**
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* Get the list of columns for the current table
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*
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* @return array
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*/
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public function get_columns()
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{
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return $this->driver->get_columns($this->prefix_table($this->name));
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}
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// --------------------------------------------------------------------------
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// ! Action methods
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// --------------------------------------------------------------------------
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/**
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* Create the table from the previously set options
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*
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* @return void
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*/
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public function create()
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{
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$this->reset();
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}
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// --------------------------------------------------------------------------
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/**
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* Update the current table with the changes made
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*
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* @return void
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*/
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public function update()
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{
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$this->reset();
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}
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// --------------------------------------------------------------------------
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/**
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* Save the changes made to the table
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*
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* @return void
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*/
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public function save()
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{
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($this->exists())
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? $this->update()
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: $this->create();
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}
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// --------------------------------------------------------------------------
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/**
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* Reset the state of the table builder
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*
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* @return void
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*/
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public function reset()
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{
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$skip = array(
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'driver' => 'driver'
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);
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foreach($this as $key => $val)
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{
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if ( ! isset($skip[$key]))
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{
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$this->$key = NULL;
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}
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}
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}
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}
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// End of table_bulider.php
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